Pakicetus is described as an early ancestor to modern whales. These organisms were land mammals, but fossil evidence shows a relation to whales and dolphins based on a number of specializations of the ear related to hearing underwater. The diagram shows three different skulls in the whale fossil record.

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.